Protective medium-density fiberboard defibrator and working method thereof

Abstract

The invention discloses a protective medium-density fiberboard defibrator which comprises a defibrator shell, a cover plate, a movable abrasive disc, a movable abrasive disc abrasive sheet, a fixed abrasive disc, a fixed abrasive disc abrasive sheet, abrasive sheet protective mechanisms and a shell protective cover, the movable abrasive disc is arranged in the defibrator shell, and the movable abrasive disc abrasive sheet is arranged on the movable abrasive disc; the cover plate is arranged on one side of the defibrator shell, the fixed abrasive disc is arranged in the cover plate, and the fixed abrasive disc abrasive sheet is arranged on the fixed abrasive disc; the abrasive sheet protection mechanisms are arranged on the movable abrasive disc and the fixed abrasive disc; the shell protective cover is arranged on the outer side of the defibrator shell; and a sealing mechanism is further included. The invention further discloses a working method of the protective medium-density fiberboard defibrator. On one hand, a controllable cut-off structure is adopted to treat large fiber clusters and foreign matter entering the defibrator, damage to the abrasive sheets is reduced, the servicelife of the abrasive sheets is prolonged, on the other hand, the outer layer of the defibrator is improved, external force can be buffered and deflected, completeness of a defibrator body part is guaranteed, exposure and collapse of the abrasive sheets are avoided, and safety is high.

Description

technical field [0001] The invention belongs to the field of fiber processing equipment and technology, in particular to a protective medium density fiberboard heat refiner and its working method. Background technique [0002] As a continuous separation equipment for separating raw materials such as wood chips into fibers, the heat mill is one of the key equipment in the medium and high density fiberboard production line. With the rapid development of my country's medium and high density fiberboard industry in recent years, the heat mill has also gained Rapid development. As an important production equipment for MDF, the working quality of the heat refiner usually determines the quality of the finished board. [0003] Yet present thermal grinder still has many weak points. For example, most of the current thermal grinding machines have the problem of short service life and easy damage of the grinding discs. Due to the high cost of the grinding discs and the fact that they a...

AI Technical Summary

Problems solved by technology

[0005] 1. Most of the current thermal grinding machines have the problem of short service life and easy damage of the grinding discs. Due to the high cost of the grinding discs and the fact that they are easily damaged when encountering hard objects, the service life of the grinding discs is short and the practicability is poor.

[0006] 2. Most of the current thermal grinding machines have the problem of debris slipping when the grinding plate is damaged, causing secondary damage. At the same time, it is easy to miss the debris when replacing the grinding plate, which affects the quality of the finished product and easily damages the new grinding plate.

[0007] 3. Most of the current thermal grinding machines are vulnerable to impact damage. They are easily damaged when encountering a large impact, and the safety is poor.

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